Siemens G120XE Technical documentation
SINAMICS GXE
Configured enclosed drive for industry
Technical documentation /
Overview of SINAMICS G120XE
The SINAMICS G120XE is an enclosed drive designed specifically for pumps, fans
and compressors. This rugged drive is based upon the SINAMICS G120X to best
meet the demands of pump, fan and compressor applications, the environment
and the power supply system.
A comprehensive range of pre-designed standard options completes the package.
Additionally, please consult the factory for any custom options that may be needed.
SINAMICS G120XE drives are UL listed to UL508A
usa.siemens.com/sinamics-gxe
Depending upon power ratings, the drive enclosure is either a wall-mounted box or a freestanding enclosure. The most common standard options can be accommodated in the base
enclosure. A few options including output filters and reduced voltage soft start (RVSS) bypass
require an add-on or separate options enclosure.
Attention to detail is evident in the design of the drive. For example, the enclosure ventilation
fans are controlled via a relay to run only when needed, i.e. when the drive is running. Not
only does this save energy costs, but it also reduces noise levels in the electrical room.
UL listing
SINAMICS G120XE is an enclosed drive listed to UL508A.
Operator interface
The door-mounted Intelligent Operator Panel IOP-2 is a high resolution color keypad that is
user-friendly and a powerful operator panel. The IOP-2 allow fast local setup, fault diagnostics
and intuitive operation of the G120X and simplifies the adjustment of settings during operation.
It features an intuitive central multi-functional sensor control wheel.
For pump, fan and compressor applications, the IOP-2 application wizards interactively guide
you without the need to know parameter numbers.
Auto / manual control is done using the membrane keyboard and the central sensor control
field and there is a dedicated local / remote button.
SINAMICS IOP-2
14 interface languages available
Process values can be displayed numerically in technological units. Up to two process values
can be displayed graphically as bar graphs. The IOP-2 also allows graphical trending of values.
Motor and drive sizing
The Service Factor must be considered for motors operating at Service Factors beyond 1.0.
Please consult factory for assistance in sizing the drive.
For motors with ratings larger than the drive, please consult the factory as nuisance tripping
may occur if the drive is not properly sized. In sensorless vector control, the rated motor
current (FLA) must be at least 1⁄4 of the rated drive output current. With lower motor currents,
operation is possible in Volts / Hz control mode only.
Overload ratings
The SINAMICS G120XE may be operated with either light or high overload duties. The criterion
for overload is that the drive is operated with its base load current before and after the overload
occurs. Light overload duty is based upon 110% base load current for 60 sec. within a cycle
time of 300 sec. or 150% for 60 sec. within a cycle time of 600 sec.
Current
1.1 x
rated
L
L
60 s
Short-time current
Rated current (permanent)
Base load current
for low overload
300 s
L
t
2
Power circuit configuration
Standard 6-pulse
Application
Pumps, fans and compressors using the G120X (standard), other industrial
applications can be achieved by substituting the PM240-2 for the G120X
Harmonic performance
(depending upon supply impedance)
Power supply system /
emergency power
Summary
THID approx. 25–50%
(with 3% line reactor option THID approx. 20–30%)
Strong and weak supply systems, emergency power generators may require
oversizing due to harmonics
Basic, compact and low-cost configuration
Control unit — SINAMICS G120X PN / EIP (Standard)
Application
Control mode
Pump, fan and compressor drives
V/F (Linear, square law, FCC, ECO), sensorless vector control (SLVC)
Functionality
Pump-specific Deragging protection, blockage, leakage and dry-running protection,
pipe filling mode, cavitation protection, condensation protection,
frost protection, multi-pump operation (pump switchover, stop mode,
service mode, cascade control mode)
Fan-specific Flying restart, automatic restart, fire mode or essential service mode
(emergency systems), no load, torque and rotation (belt) monitoring
with sensor, skip frequency bands, elapsed time
Energy efficiency and
performance-specific
Optimize operation and
Eco mode, bypass mode, hibernation or sleep mode, energy / flow calculator,
real-time clock and programmable timer
Keep running mode, PID controller, dual ramp, multi-speed setpoints
increase system availability
Compatible motor types Asynchronous (induction) motors, permanent magnet synchronous motors,
synchronous reluctance motors
Inputs
Outputs
Integrated Safety (encoderless)
NOTE: Some of the control unit inputs and outputs may be use for options
6 digital (30V)
2 analog (-10–10V, 0/4–20mA)
2 digital (Relay, 2A, 30V DC / 2A, 250V AC)
1 analog
Hardware-based SIL3 Safe Torque Off (STO) function with on / off switch
Commuication bus interface
Industrial Ethernet
PROFINET, EtherNet / IP, Profibus, Modbus RTU/USS, BACnet MS/TP, WiFi
via Smart Access Module (SAM)
3
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